GB2201774B - Apparatus and methods for measuring phase modulation - Google Patents

Apparatus and methods for measuring phase modulation

Info

Publication number
GB2201774B
GB2201774B GB8805138A GB8805138A GB2201774B GB 2201774 B GB2201774 B GB 2201774B GB 8805138 A GB8805138 A GB 8805138A GB 8805138 A GB8805138 A GB 8805138A GB 2201774 B GB2201774 B GB 2201774B
Authority
GB
United Kingdom
Prior art keywords
methods
phase modulation
measuring phase
measuring
modulation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
GB8805138A
Other versions
GB2201774A (en
GB8805138D0 (en
Inventor
Peter Donald Baker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Smiths Group PLC
Original Assignee
Smiths Group PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Smiths Group PLC filed Critical Smiths Group PLC
Publication of GB8805138D0 publication Critical patent/GB8805138D0/en
Publication of GB2201774A publication Critical patent/GB2201774A/en
Application granted granted Critical
Publication of GB2201774B publication Critical patent/GB2201774B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
    • G01C19/58—Turn-sensitive devices without moving masses
    • G01C19/64—Gyrometers using the Sagnac effect, i.e. rotation-induced shifts between counter-rotating electromagnetic beams
    • G01C19/72—Gyrometers using the Sagnac effect, i.e. rotation-induced shifts between counter-rotating electromagnetic beams with counter-rotating light beams in a passive ring, e.g. fibre laser gyrometers
GB8805138A 1987-03-05 1988-03-03 Apparatus and methods for measuring phase modulation Expired - Fee Related GB2201774B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB878705141A GB8705141D0 (en) 1987-03-05 1987-03-05 Measuring phase modulation

Publications (3)

Publication Number Publication Date
GB8805138D0 GB8805138D0 (en) 1988-03-30
GB2201774A GB2201774A (en) 1988-09-07
GB2201774B true GB2201774B (en) 1991-02-20

Family

ID=10613355

Family Applications (2)

Application Number Title Priority Date Filing Date
GB878705141A Pending GB8705141D0 (en) 1987-03-05 1987-03-05 Measuring phase modulation
GB8805138A Expired - Fee Related GB2201774B (en) 1987-03-05 1988-03-03 Apparatus and methods for measuring phase modulation

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB878705141A Pending GB8705141D0 (en) 1987-03-05 1987-03-05 Measuring phase modulation

Country Status (4)

Country Link
JP (1) JP2641891B2 (en)
DE (1) DE3807325C2 (en)
FR (1) FR2611897B1 (en)
GB (2) GB8705141D0 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4003326A1 (en) * 1990-02-05 1991-08-08 Teldix Gmbh METHOD AND ARRANGEMENT FOR DETERMINING ANGLE SPEEDS
US7327460B2 (en) * 2005-11-02 2008-02-05 Honeywell International, Inc. Transmission mode RFOG and method for detecting rotation with RFOG

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4299490A (en) * 1978-12-07 1981-11-10 Mcdonnell Douglas Corporation Phase nulling optical gyro
US4372685A (en) * 1979-01-15 1983-02-08 Max-Planck-Gesellschaft Zur Forderung Der Wissenschaften E.V. Method and arrangement for the measurement of rotations
GB2108652B (en) * 1981-10-27 1985-05-30 Standard Telephones Cables Ltd Fibre-optic interferometer gyroscope
JPS58214809A (en) * 1982-06-09 1983-12-14 Nippon Telegr & Teleph Corp <Ntt> Fiber gyro
JPS59610A (en) * 1982-06-28 1984-01-05 Fujitsu Ltd Optical fiber gyroscope
JPH0743263B2 (en) * 1984-12-21 1995-05-15 工業技術院長 Phase modulation optical fiber gyro

Also Published As

Publication number Publication date
GB2201774A (en) 1988-09-07
GB8705141D0 (en) 1987-04-08
JPS63234164A (en) 1988-09-29
DE3807325C2 (en) 1997-01-09
FR2611897A1 (en) 1988-09-09
JP2641891B2 (en) 1997-08-20
DE3807325A1 (en) 1988-09-15
GB8805138D0 (en) 1988-03-30
FR2611897B1 (en) 1993-10-29

Similar Documents

Publication Publication Date Title
EP0473282A3 (en) Method and apparatus for measuring modulation accuracy
GB8721858D0 (en) Measurement apparatus
GB8717173D0 (en) Time measurement apparatus
AU7126287A (en) Position measuring apparatus and method
DE3666317D1 (en) Jitter measurement method and apparatus
ZA893888B (en) Measuring apparatus
DE3379019D1 (en) Phase modulation method and apparatus
GB8721175D0 (en) Apparatus for testing
GB8928255D0 (en) Measuring apparatus
GB8724101D0 (en) Measuring apparatus
GB2220743B (en) Measurement method and apparatus
ZA884831B (en) Method and apparatus for photoepilation and electroepilation
GB2217004B (en) Method and apparatus for measuring of microdistances.
GB2227383B (en) Frequency measuring apparatus
GB2201774B (en) Apparatus and methods for measuring phase modulation
GB8811472D0 (en) Measuring apparatus
GB8716419D0 (en) Testing apparatus
GB2197461B (en) Method and apparatus for spectral measurement
GB8702805D0 (en) Container testing apparatus
GB8727949D0 (en) Test method &amp; test apparatus
GB2215529B (en) Testing apparatus
ZA833671B (en) Phase measuring method and apparatus
GB8913553D0 (en) Frequency measurement apparatus
GB8812905D0 (en) Measuring method &amp; apparatus
PL264674A1 (en) System for measuring frequency and time

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19980303